Worldwide Ultralite Spitfire Explained

The Worldwide Ultralite Spitfire is an American ultralight aircraft that was designed by Fred Bell and manufactured by Worldwide Ultralite Industries and later by Don Ecker and Air Magic Ultralights of Houston, Texas. The aircraft was supplied as a kit for amateur construction.[1] [2] [3]

Design and development

The Spitfire is a derivative of the Phantom X1 that was created by former Phantom Aeronautics employee Fred Bell, who also designed the Bell Sidewinder. The Spitfire was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 2540NaN0. The aircraft has a standard empty weight of 2530NaN0. It features a strut-braced high-wing, a single-seat, open cockpit, tricycle landing gear and a single engine in tractor configuration.

The aircraft is made from bolted-together aluminum tubing, with the flying surfaces covered in Dacron sailcloth. The Spitfire differs from the X1 in having flaps, struts in place of cable-bracing, a centre stick and a cog-belt reduction drive. Its 301NaN1 span wing is supported by "V" struts and jury struts. The pilot is accommodated on an open seat, partially enclosed by a fibreglass fairing with a windshield. The standard engine initially provided was the Kawasaki 440 snowmobile powerplant of 360NaN0.

The design pushes the empty weight limits set by FAR 103 and thus has to be built carefully and cannot be fitted with options if it is to be legally flown in this category.

A two-seat version in side-by-side configuration was also produced by Air Magic Ultralights. Powered by a Rotax 503 two-stroke powerplant of 500NaN0, it has a gross weight of 8000NaN0.

Variants

Spitfire
  • Single seat version powered by a 400NaN0 Rotax 447 engine. It was offered in Ultralight and Super Sport configurations, with the latter having a larger engine, more instruments, sprung steel landing gear, an auxiliary fuel tank and wheel pants.
    Spitfire II
  • Two seats in side-by-side configuration version powered by a 500NaN0 Rotax 503 engine. It was offered in an Elite configuration that included bucket seats, a larger engine and a fuel tank.

    External links

    Notes and References

    1. Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 103. BAI Communications, 15 July 1998.
    2. Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page E-33 and 37. Cybair Limited Publishing, 2001.
    3. Web site: Spitfire. 12 December 2011. Virtual Ultralight Museum. n.d..